Publisher's Synopsis
Excerpt from Seedbed Characteristics in Western Larch Forests After Prescribed Burning
Removal of trees from western larch (larix occidentalis Nutt.) forests changes the energy and moisture budgets at the ground surface (fig. The volume of timber removed, the means of its removal, and the aspect of the site influence the amount of direct and indirect sunlight reaching the forest floor and thus, the amount of heating of slash, duff, and upper soil. Radiation and reflection from the slash, duff, and upper soil and convection also increase. Transpiration and interception of precipitation decrease when a timber stand is cut, particularly clearcut; so more water is temporarily available in the soil. Evaporation of soil water remains low as long as vegetation and dead organic residue protect the forest floor from direct radiation and surface wind. Because of the change in energy and water budgets, the composition of the lesser vegeta tion may change.
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